Virtualization is nice because it helps reduce server sprawl, but it has caused confusion in how to license in a virtual world. Today it's done at the install, and [the license] is bound to the physical device. But when you move to a virtual world, how do you count if customers have a blend of both physical and virtual machines? They need to manage both and enable interoperability in a virtual world and licensing models, so you can consume them in an easy-to-understand way. Bob Kelly